California scientists have tracked air pollution using 70 cornfields in 30 states.The UC Irvine scientists came up with the idea as a way to complement air samples.
Corn is grown just about everwhere in the US. It's an annual plant -- so all the carbon dioxide contained in the corn is from a single year.
Their research led to finding the Ohio Valley and California having the most carbon dioxide. Colorado had the least.
Mapping gas using corn.
Hmmm. I would have though they'd have used beans. (UC Irvine)
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